An Arkansas death row inmate died Friday afternoon at the Varner SuperMax prison of unknown causes.
Latavious Johnson was in his 40s at the time of his death, the Arkansas Department of Corrections said.
He had first been sentenced to life for the 2000 murder of his father, Johnnie Johnson, before being sentenced to death for fatally stabbing prison guard Barbara Ester in 2012.
Ester was investigating whether Johnson had acquired a pair of unsanctioned gym shoes when he stabbed her with a shank three times, puncturing her heart.
“I should have just gave the shoes up, just said to hell with it, asked someone to send me some money and order me some more,” a remorseful Johnson told police.
“It’s too late for all that now.”